Indicator.



H. P. QUICK.

INDICATOR.

APPLIOATION FILED AUG. 22, 190e.

Patented Aug. 17, 1909.

Inventor:

W/Wfulnlllll Attys "UNITED STATES.

HOWARD P. QUICK, OF

PATENToFnicE.

BROOKLYN, NEW YORK, ASSIGNOR TO VVIRGINIUSD. MOODY AND CHARLES S. HAMNER, OF NEW YORK, N. Y. j

INDICATOR.

To all whom it 'may concern:

Be it known that I, HOWARD P. Quick, a citizen ofthe United States of America, and a resident of Brooklyn, county` of Kings, and State of New York, have invented-icertain new and useful Improvements in Indicators,

` of which the following is a specification'.

--To this ring a flap My invention 'relates to indicators for showingvisually the 'flow of liquids ,through pipes, and comprises a casing adapted to be connected in a pipe line and having a'window of transparent material, and, behind said window, and inthe path of liquid iiowing through the casing, a swinging member adapted to be deflected by the said li uid.

My invention consists in the nove structure of the device.

The object of my invention is to provide a simple, reliable and automatic flow indicator, the operation of which be understood at a glance, and the' meaning of the indications of which will be obvious even to untrained observers.

I will now proceed to describe my invention with reference to the accompanying drawings, in which one form of suchflow indicator is illustrated, and will then point out the novel features in claims.

In said drawings Figure 1 shows-a front elevation of my improved -iiow indicator connected in a horizontal pi e line; Fig. 2 shows a horizontal axial section on the line :zzof Fig. 1 Fig.- 3 shows a vertical axial section of the device on the line y-fy of Fig. 1. Fig. 4 is a view similar to Fig. l, illustrating means for reinforcing the window when relatively great pressures" are to be resisted.

My device comprises a main casing mem-l ber, a supporting member, rotatively movable for purposes of adjustment, a lap or indicator, pivotedly connected vto said ring or supporting member, a window, means for ho ing said window in place, and packing means forming'a tight joint to prevent the escape of liquid around the window.r

In said drawing 1 indicates the said casing, comprising an approximately circular object with connections at opposite sides for the ends of the pipe, and having. an opening on one side in which is a sup orting ring 2, seated against a shoulder 3, ormed in said casing as indicated particularly in Fig. 3. 4 is pivoted by means of a pivot screw 5. or lightness and simplicity Specication of Lettera Patent. Application med August 22, 190s. serial No'. 449,786.

Patented Aug. 17, 1909.

yof vconstruction this ila is formed as an object Aof T,-section, as in icated particularly in Fig. 2, the broad face so formed on the front side of the flap being, therefore, readily distinguishable even in dim lights and being well adapted to have upon it an arrow mark 6, or other'convenient means for attracting attention. In front of th`e ring 2 and flap 4, there is a window 7 of glass, or other suitable transparent material, and in front of this window there is a screw-ring 8 adapted to screw into the open mouth of the casing 1 and so to hold the window in place. To insure a tight joint'between the window and casing 1, I provide packing material 9 between the said window and a shoulder 10 of l'the casing and the face of the ring 2. This packing material which, ordinarily, is more or less elastic, also serves to distribute strain on the-window and to prevent cracking of tllie (avindow due to pressure irregularly ape p It will be obvious that with the flap in the normal position indicated in ull lines in Fig. 1 the fla will tend to hang down vertically and lui flowing in either direction through the apparatus will cause said iiap to deflect to the one side or to the other, 'according-to the direction of the iiow,` thus indicating positively that iiuid is flowing through the device. Where flow is to be indicated only, or mainly, in one direction the pivotal point of the iiap need not be on the vertical axis of the apparatus, but the ring 2 may be moved to one side or the other, as indicated in dotted lines in Fig. 1, according to the direction Vof normal iiow of liquid through the appara tus; the iiap will then, nevertheless, tend to hang down vertically when there is no liquid flowing, but when li uid is flowing in the normal direction the ap will be deflected to or beyond the position indicated in dotted lines in Fig. 1.

The apparatus is equally suitable for inclusion 1n vertical or nearly vertical pipe lines, the ring 2 being shifted, if so desired, against the direction of flow to or toward one o the positions indicated in dotted. lines in Fig. 1, so that the flap will tend to hang transversely of the normal path of flow, and will be deflected from such position by liquid flowing in the normal direction. The apparatus so arranged is then suitable for use in pipes in whichthe flow is upward. When the iiow is downward in a vertical pipe, in

applying the indicator the piping is rearranged so as to provide a length in which thefiow is upward, or horizontal or nearly so, in which length the indicator is included.

If so desired, the Window 7 maybe provided with a raduated arc 11, in which case the device wil serve as an approximate indicator of the rate of flow.

What I claim is 1. A flow indicator comprising in combination a casing having an open side, a window of transparent material, normally closing such open side, means for holding such window in lace, and a deflectable flap behind said wlndow and in the path of liquid flowing through the casing.

2. A flow indicato'r comprising in combination a casing having an open side, and having entrance and outlet openings for the flow of liquidthrough said casing and past said open side, a window of transparent material, normally closing such open side, a supporting body behind said window and a deilectable Hap pivoted to said body and adapted to hang by gravity in the path of liquid flowing through the casing.

3. A How indicator comprising in combination a easing having an open side, and having entrance and outlet openings for the flow of liquid through said casing and past said open side, a window of transparent material, normally closing such open slde, a rotatively adjustable supporting body behind said winbody and adapted to han b avit in the path of liquid flowing thrugyhgtrhe cgrsing.

4. A flow indicator comprisin in combination a easing having an open si e, and having entrance and outlet openings for the passage of liquid through said casingand past said open side, a window of transparent material, normally closing such open side, a screw ring screwing into the mouth of said casing) and holding said window in place, a ring ehind said window and seated in a shoulder in the casing and a deflectable flap pivoted to said ring.

5. A fiow indicator comprising in combination a casing having an open side and having entrance and outlet openings for the passage of liquid through said casing and past said open side, a window of transparent material,'normally closing such open side, a screw ring screwing into the mouth of said casinfjr and holding said window in place, a ring lbehind said window and seated in a shoulder in the casing, a deflectable flap pivoted to said ring, and packing material between said window and the casing.

In testimony whereof I have signed this specication in the presence of two subscribing witnesses.

HOWARD P. QUICK. Witnesses: A v

dow and a deiiectable flap pivoted to said I 

